Home / 14,415.75-21,510.45-12,943.17

Finding the Fourth Proportional to 14,415.75, 21,510.45 and 12,943.17

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Solution

The fourth proportional to 14,415.75, 21,510.45 and 12,943.17 is: 19,313.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,415.75 : 21,510.45 = 12,943.17 : x
  2. Step 2: Convert to fraction form
    14,415.75/21,510.45 = 12,943.17/x
  3. Step 3: Cross multiply
    14,415.75x = 21,510.45 × 12,943.17
  4. Step 4: Simplify right side
    14,415.75x = 278,413,411.13
  5. Step 5: Solve for x
    x = 278,413,411.13/14,415.75
  6. Step 6: Final answer
    x = 19,313.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.